Committee |
Date Time |
Place |
Paper Title / Authors |
Abstract |
Paper # |
MI |
2014-01-27 13:30 |
Okinawa |
Bunka Tenbusu Kan |
An automated recognition method for blurred X-ray images Tomoya Muroi, Yongbum Lee, Du-Yih Tsai (Niigata Univ.), Masaki Tsurumaki (Nakajo Chuo Hosp.) MI2013-101 |
In this study, we proposed an automated recognition method for blurred radiographs. The method involved edge detection u... [more] |
MI2013-101 pp.245-248 |
MI |
2014-01-27 13:30 |
Okinawa |
Bunka Tenbusu Kan |
Evaluation of chest X-ray images using fractal dimension including contrast sensitivity function of human eyes Shun Endo, Yongbum Lee, Du-Yih Tsai (Niigata Univ.), Takeshi Hara (Gifu Univ.) MI2013-119 |
Objective evaluation, e.g. using MTF or NPS, of X-ray imaging system may not correctly correspond to subject evaluation,... [more] |
MI2013-119 pp.331-334 |
MI |
2012-01-20 11:25 |
Okinawa |
|
[Poster Presentation]
Improvement of image quality in digital radiography by use of a combined wavelet transform method Haruyuki Watanabe, Du-Yih Tsai, Yongbum Lee, Eri Matsuyama (Niigata Univ.), Katsuyuki Kojima (Hamamatsu Univ.) MI2011-126 |
This study presents an improved wavelet-transform-based method for offering a possibility to reduce the radiation dose w... [more] |
MI2011-126 pp.269-274 |
MI |
2011-07-12 10:30 |
Hokkaido |
Hokkaido University |
Investigation of fundamental techniques for autonomous computer-aided diagnosis system Yongbum Lee, Du-Yih Tsai, Yuriko Yoshida (Niigata Univ.) MI2011-33 |
A novel application of computer-aided diagnosis (CAD), namely autonomous CAD, was proposed in this study. Autonomous CAD... [more] |
MI2011-33 pp.7-10 |
MI |
2011-07-12 15:10 |
Hokkaido |
Hokkaido University |
Denoising of mammographic images using hierarchical correlations of the coefficients of discrete stationary wavelet transforms Eri Matsuyama, Du-Yih Tsai (Niigata Univ.), Yongbum Lee, Haruyuki Watanabe (Niigata Univ), Masaki Tsurumaki (Nakajyo Central HP), Atsuko Takada (Niigata Univ) MI2011-38 |
In this report, we propose an effective denoising method to attempt to denoise mammographic images. The method is based ... [more] |
MI2011-38 pp.31-36 |
MI |
2010-11-15 13:00 |
Kyoto |
Shimadzu Corp. |
Calculations of wiener spectrum in x-ray images using FPD by extended checker board-model Takumi Sawada, Isao Yamada (GNCT), Du-Yih Tsai (Niigata Univ.), Masao Matsumoto (Osaka Univ.) MI2010-72 |
Recently, FPD(Flat Panel Detector) is used for a detector of medical x-ray imaging system. It is known widely that vario... [more] |
MI2010-72 pp.33-37 |
MI |
2010-01-29 11:40 |
Okinawa |
Naha-Bunka-Tenbusu |
[Poster Presentation]
Reduction of Radiation Dose in Computed Radiography Using Wavelet Transform Haruyuki Watanabe, Du-Yih Tsai, Yongbum Lee, Eri Matsuyama (Niigata Univ.), Katsuyuki Kojima (Hamamatsu Univ.) MI2009-127 |
In this paper, we investigated the effect of the use of wavelet transform on dose reduction in computed radiography (CR)... [more] |
MI2009-127 pp.279-284 |
MI |
2009-01-20 14:30 |
Overseas |
National Taiwan University |
[Poster Presentation]
Resolution and Noise Trade-Off Analysis for Digital Radiography Using Mutual-Information Metric Eri Matsuyama, Du-Yih Tsai, Yongbum Lee (Niigata Univ.), Katsuyuki Kojima (Univ. of Hamamatsu) MI2008-145 |
Currently, the modulation transfer function and noise power spectrum are commonly used as image quality metrics to chara... [more] |
MI2008-145 pp.391-396 |
MI |
2009-01-21 09:50 |
Overseas |
National Taiwan University |
[Poster Presentation]
An Algorithm for Automated Determination of Sagittal Imaging Plane from Positioning Images in Cervical Spinal Cord MRI Masaki Tsurumaki (Nakajo Central Hp.), Du-Yih Tsai, Yongbum Lee, Masaru Sekiya (Niigata Univ.), Kiyoko Kazama (Nakajo Central Hp.) MI2008-172 |
Development of a high-speed imaging technique in MR imaging is motivated by the need to shorten exam time. However, the ... [more] |
MI2008-172 pp.507-512 |
MI |
2009-01-21 09:50 |
Overseas |
National Taiwan University |
[Poster Presentation]
Irreversible Compressed Images Using Physical Image Quality Measures Haruyuki Watanabe, Du-Yih Tsai, Yongbum Lee (Niigata Univ.), Tomohiro Nakamura (Teikyo Univ.) MI2008-183 |
Compression algorithms are widely used in medical image database systems. So far, compressed images have been mainly eva... [more] |
MI2008-183 pp.559-564 |
MI |
2008-07-16 13:00 |
Hokkaido |
Sapporo Medical University |
Image Quality Evaluation of Digital Radiographs by Use of Transmitted Information Metric Eri Matsuyama, Yongbum Lee, Du-Yih Tsai (Niigata Univ.) MI2008-21 |
This paper presents an information-entropy-based approach for evaluating overall image quality in medical imaging system... [more] |
MI2008-21 pp.9-14 |
PRMU, MI |
2007-05-25 14:40 |
Mie |
Mie Univ. |
Theoretical Analysis of Relationship between Signal-Detctability and System Condition of Flat-Panel Detector Isao Yamada, Hiroshi Sawada (Gifu College), Kazuo Tanaka (Gifu Univ), Du-Yih Tsai (Niigata Univ.) PRMU2007-24 MI2007-24 |
This paper deals with theoretical analysis of the relationships between signal-detectability of images using the indirec... [more] |
PRMU2007-24 MI2007-24 pp.133-136 |
PRMU, MI |
2006-05-26 09:00 |
Aichi |
Aichi Prefectural University |
A novel adaptive partial median filter for detectability improvement of acute stroke signs on brain CT images Yongbum Lee (Niigata Univ.), Noriyuki Takahashi (Sendai City Hosp.), Du-Yih Tsai (Niigata Univ.) |
Computed tomography (CT) is an important modality for diagnosis of hyper-acute stroke. In this study, a novel adaptive p... [more] |
PRMU2006-23 MI2006-23 pp.19-24 |
MI |
2006-01-27 16:00 |
Okinawa |
Miyakojimashi-Chuo-Kouminkan |
Automatic detection of nodules isolated and touched lung wall on chest X-ray CT image using localized autocorrelation features Motonari Hirose, Takeshi Hara, Xiangrong Zhou, Hiroshi Fujita (Gifu Univ.), Ryujiro Yokoyama, Takuji Kiryu, Hiroaki Hoshi (Gifu University Hospital), Yongbum Lee, Du-Yih Tsai (Niigata Univ.) |
[more] |
MI2005-101 pp.139-142 |
MI |
2005-01-22 14:20 |
Okinawa |
Univ. of the Ryukus |
Automatic Detection of Nodules on Chest X-ray CT Images Using Higher-order Autocorrelation Features and GA Template-matching Method Motonari Hirose, Takeshi Hara, Xiangrong Zhou, Hiroshi Fujita, Takuji Kiryu, Ryujiro Yokoyama, Hiroaki Hoshi (Gifu Univ.), Yongbum Lee, Du-Yih Tsai (Niigata Univ.) |
[more] |
MI2004-101 pp.115-118 |